News tagged with images

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Watching the death throes of tumours

A clinical trial due to begin later this year will see scientists observing close up, in real time – and in patients – how tumours respond to new drugs.

Feb 26, 2015
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FDA OKs new varicose vein treatment

(HealthDay)—A new system to permanently treat varicose veins in the legs by sealing the affected veins with adhesive was approved Friday by the U.S. Food and Drug Administration.

Feb 20, 2015
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A tour of neural reinforcement learning

It is often said that people who do not learn from history are doomed to repeat it. Not being one of those people requires a network of different brain regions to work in concert.

Feb 09, 2015
popularity 2 / 5 (1) | comments 0

Image

An image (from Latin imago) is an artifact, or has to do with a two-dimensional (a picture), that has a similar appearance to some subject—usually a physical object or a person.

Images may be two-dimensional, such as a photograph, screen display, and as well as a three-dimensional, such as a statue. They may be captured by optical devices—such as cameras, mirrors, lenses, telescopes, microscopes, etc. and natural objects and phenomena, such as the human eye or water surfaces.

The word image is also used in the broader sense of any two-dimensional figure such as a map, a graph, a pie chart, or an abstract painting. In this wider sense, images can also be rendered manually, such as by drawing, painting, carving, rendered automatically by printing or computer graphics technology, or developed by a combination of methods, especially in a pseudo-photograph.

A volatile image is one that exists only for a short period of time. This may be a reflection of an object by a mirror, a projection of a camera obscura, or a scene displayed on a cathode ray tube. A fixed image, also called a hard copy, is one that has been recorded on a material object, such as paper or textile by photography or digital processes.

A mental image exists in an individual's mind: something one remembers or imagines. The subject of an image need not be real; it may be an abstract concept, such as a graph, function, or "imaginary" entity. For example, Sigmund Freud claimed to have dreamt purely in aural-images of dialogues. The development of synthetic acoustic technologies and the creation of sound art have led to a consideration of the possibilities of a sound-image made up of irreducible phonic substance beyond linguistic or musicological analysis.

This text uses material from Wikipedia licensed under CC BY-SA